<?php 
class userModel extends db_mongo{

	public function user_insert_test(){
		$this->collection_obj->insert(array(
				'name' => 'yangligao',
				'sex'  => 'man'
			));
	}

	public function user_select_test(){
		$find_res = $this->collection_obj->find();
		return $find_res;
	}

}
 ?>